Everyone knows Streetcomplete, but have you heard of MapComplete yet?
What a nice project, i recently found. Contribute to Open Street Map theme and project based.

mapcomplete.org/ by @MapComplete

#MapComplete #OSM #openstreetmap

MapComplete - editable, thematic maps with OpenStreetMap

MapComplete is a platform to visualize OpenStreetMap on a specific topic and to easily contribute data back to it.

^{mapcomplete.org}